Grade 5 titanium tubing

Does anyone know a good place where I can buy grade 5 titanium tubing in small quantities? Looking through the links in "Framebuilding Suppliers", I only see one place that deals with titanium, they have grade 9 and it seems overpriced ($60 for a 31.8x650 mm tube).

As far as I know the only source of 6Al4V tubing was Reynolds. It has apparently been effectively unobtanium for about 5 years. Their website still lists it as "available to custom order" but apparently that order has to be very large before they'll talk turkey.

A figure I've seen mentioned is one tonne of billet. Since the entire US Ti bike industry is probably in single digit tonnes per annum, it's hard to see how anyone could stump this.

I don't want to talk you out of your choice but as far as I know 6Al 4V tubing is too hard to butt. You may be better off with butted 3Al 2.5V tubing. I have made seamed Ti tubing it tends to break the tools used to work with it. So 60 dollars for a down tube is reasonable. You may be able to buy tubing from Santana tandems they claim they will sell their tubes to other builders.

Charles: 6/4 tubing can be butted. In fact the stuff Reynolds used to sell was butted in the real sense (drawn over a mandrel) which is uncommon in Ti. Most "butting" in Ti is done by externally grinding the surface of the tube so it doesn't matter whether it's 3/2.5 or 6/4, with the right abrasive* it's very easy to grind.

* It's brutal on tooling - it also burns, literally, if you get it too hot in the presents of o2.
* Ti demands spotlessly clean grinding & machining equipment. Any foreign metal particles embed when welding, will compromise joint integrity - often serious.
* Welding must be TIG and back purging is required.
* AT 2-3 bucks per/inch, any screw-ups will be costly.
* And FWIW, 6Al-4V (Grade 5) is much more difficult to weld than Grade 9 - the man on the torch better know what he's doing.